Drag the cards to create a three -digit number that matches these rules

note: not all cards will be used

Ones digit: 1

Tens digit: 7

Hundreds digit: 5, 6

Only 1 can be used in the unit place (right)

Only 7 can be used in the tens place (middle)

5 or 6 can be used in the hundreds place (left)

571, 671

Rounding to nearest hundred: higher if equal or greater than 50, lower if below 50

Nearest hundred for 571: 600

Nearest hundred for 671: 700

Answer is 571

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column